In the process of alchemy, fire control is the first difficulty. Only by controlling the temperature of the alchemy properly can it be possible to smelt a pill. In addition, a strong spiritual awareness is also essential, because only the involvement of the power of the soul can clearly perceive the degree of the temperature of the alchemy and make adjustments in time.


    "If the temperature is too high, the medicinal materials will be burned. The flame should have been too fierce just now."


    After long Bufan pondered for a while, he whispered to himself, so he ran the fire system vitality again, slowly poured it into the Dan furnace from his palm, and then silently operated the fire control formula to slowly solidify the vitality into a flame.


    Then with a move from his left hand, he threw the second medicine of Chuang Lingdan into the furnace.


    "Boom --!"


    Once in the furnace, a strong red flame swept up madly, and the medicinal materials were burned to ashes again.


    Under psychic induction, he learned that the medicine was burned again. Long Bufan was not affected by this failure. Learn from this experience, slightly adjust the flame concentration again, and then throw it into the third medicine.


    "Hoo --!"


    Once again, he was burned into slag. Long Bufan kept urging the flame. The extracted medicinal materials on the table continued to put herbs into the Dan furnace. Repeated failures did not shake long Bufan''s firm confidence. After each failure, he silently remembered the balance of the flame in the Dan furnace, so as to adjust the flame concentration again.


    Gradually, time passed quickly in the alchemy room. The flame in the tripod furnace was reflected on the surrounding stone walls, and the flame kept beating. The temperature in the alchemy room also gradually increased. Long Bufan was already sweating, and nine of the ten Chuang Lingdan herbs he had prepared had been consumed, leaving only the last one!


    "I thought alchemy was very simple, but it was much more difficult than fighting." long Bufan stretched out his hand to erase the sweat on his forehead, grinned and gasped slightly. Although he failed so many times, he also found the right feeling.


    Shi Su, who had been standing by and watching silently, obviously couldn''t see it anymore. Qing drank: "don''t be anxious. Hold on. This is not a battle. You should learn to control the release of vitality. Otherwise, even if your yuan power is consumed, the pill can''t be refined. This is the key to fire control."


    "Well, try again!" long Bufan nodded and clenched his teeth. He threw the last medicinal material into the Dan furnace. Under the operation of Yuan Li, a flame flickered in the Dan furnace under the fine control of spiritual knowledge.


    This time, the herbal medicine that was originally turned into ashes in the Dan stove did not happen miraculously. Instead, the essence of herbal medicine gradually melted into liquid form.


    "The degree of fire control has become!" long Bufan was slightly happy, and suddenly his spiritual knowledge sank. He focused on observing the red flame rising in the Dan furnace and tried to control the balance of fire as much as possible. At this time, long Bufan was absolutely not allowed to make any mistakes.


    Half an hour later, I saw some fine impurities in the liquid being gradually removed.


    This is the third step of melting, controlling the heat and melting the herbal medicine into the liquid and removing the impurities second times, and the remaining essence can be condensed into Dan shape.


    "The third step is completed, and the fourth step is to condense the pill."


    Long Bufan thought secretly in his heart. Under the induction of spiritual knowledge, with the last impurity in the liquid being removed, long Bufan quickly pinched a Rune of the formula of coagulating pills into the Dante furnace. In a moment, the liquid mass formed a circle under the control of the rune, slowly concentrated and condensed into a pill shape